Third person singular present tense of 'buttle'; to work as or perform the duties of a butler.
From butler used as a verb, following the English pattern of converting nouns to verbs (e.g., to host, to garden). The word 'buttle' emerged in the late 19th century.
You'll rarely hear 'butles' in modern English, but it was used in Victorian novels—'he butles for the Earl' meant he worked as a butler, showing how verb-ification was used to describe professional service roles.
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